نتایج جستجو برای: closed and open number system
تعداد نتایج: 17217426 فیلتر نتایج به سال:
Background and purpose: Microbial electro-Fenton system as a novel technology can be employed in removal of resistant organic pollutants along with generation of renewable electrical energy through the activity of anaerobic microorganisms. This study aimed at investigating the performance of this process in treatment of synthetic wastewater containing tetracycline and generation of electricity ...
ABSTRACT Mandibular condyle fractures are relatively common. Because of longterm morbidity of temporomandibular joint dysfunction and ankylosis, correct management of these fractures are very important. The contraversy between closed and open approaches, has not yet been solved in the management of these fractures. In this article, we reviewed 302 cases of mandibular fractures since 19...
the present study was designed to study the preventive effect of hydroalcoholic extract of ripe pistachio hulls (rph) in the elevated plus maze model of anxiety. one hundred twenty female wistar rats in their estrous cycle were divided into 15 groups of 8 each and received various concentrations of hydroalcoholic extract of rph except the control groups. elevated plus maze was used to measure t...
background postural instability is one of the common problems of aging. however, with increased age many systems of body such as musculoskeletal system are affected and changed. one of these changes is knee flexion contracture. the study aimed to investigate the simulated knee flexion contracture effects on postural stability in elderly. material and methods 15 elderly subjects (11 men, 4 women...
Objectives: Researchers have focused their attention on balance in the elderly because there is a significant correlation between balance and fall. Therefore, it is very important to identify the factors that can affect elderly balance. The aim of this study was to investigate relation between sustained attention and balance in elderly. Methods: This cross sectional study was conducted in 20...
a significant problem in multicarrier communication systems is the necessity to reduce the value of papr (peak-to-average power ratio) of transmitting signal. in this thesis we study the effect of the system parameters such as coding and modulation types on papr and ultimate ber in a mc-cdma system. in this study we consider fading channel as well as the nonlinearity of transmitter’s amplifier ...
the following null hypothesis was proposed: h : there is no significant difference between the use of semantically or communicatively translates scientific texts. to test the null hypothesis, a number of procedures were taken first, two passages were selected form soyrcebooks of food and nutrition industry and gardening deciplines. each, in turn, was following by a number of comprehension quest...
abstract: background and purpose: an open-book exam permits the examinees to consult some selected reference sources or materials while answering the exam questions. this study focused on students' perspectives of open-book examinations in histology/ embryology courses, zahedan university of medical sciences (zums), zahedan, iran. methods: the survey was conducted via a questionnaire after open...
conclusions our results demonstrated that the extract of ob could induce anxiolytic effect in rats after 1 week oral administration. the effect of ob was not induced through changes in motor activity. further investigations are necessary for pharmacological providing of ob and better understanding of its anxiolytic properties and neurobiological mechanisms. results the results showed that after...
conclusions fuji plus cement exhibited better sealing ability in closed and open margins compared to g-cem and fleck cements. when using g-cem and fleck cements for full metal ceramic restorations, clinicians should try to minimize marginal gaps in order to reduce restoration failure. in situations where there are doubts about perfect marginal adaptation, the use of fuji plus cement may be help...
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